Winding machines, particularly cross-winding machines



J. KUPPERS Oct. 17, 1961 WINDING MACHINES, PARTICULARLY CROSS-WINDINGMACHINES Filed June 3, 1958 6 Sheets-Sheet 1 Fig. I

llvw wro MM? J. KUPPERS Oct. 17, 1961 WINDING MACHINES, PARTICULARLYCROSS-WINDING MACHINES Filed June 3, 1958 6 Sheets-Sheet 2 IN VEN r0 J.KUPPERS Oct. 17, 1961 WINDING MACHINES, PARTICULARLY CROSS-WINDINGMACHINES 6 Sheets-Sheet 3 Filed June 5, 1958 Fig. 6

INVEII'I "r01 WW Oct. 17, 1961 J. KUPPERS WINDING MACHINES, PARTICULARLYCROSS-WINDING MACHINES Filed June 3, 1958 6 Sheets-Sheet 4 IN VEN r01?OW W Oct. 17, 1961 J. KUPPERS 3,004,726

WINDING MACHINES, PARTICULARLY CROSS-WINDING MACHINES Filed June 5, 1958V 6 Sheets-Sheet 5 I I9. I0

, lNl/EN TOR w M M Oct. 17, 1961 J. KUPPERS 3,004,725

WINDING MACHINES, PARTICULARLY CROSS-WINDING MACHINES Filed June 3, 19586 Sheets-Sheet 1 Fig. 71

IN VEN TOR United rates The present invention relates to windingmachines in general and to cross-winding machines with split drums inparticular.

It is known to use so-called split drums for the drive of cross-windingmachines and for the simultaneous shifting of the thread incross-winding machines having a high winding velocity. Such split drumshave a threading slot, so that the thread feeds itself into the splitdrums. Furthermore these split drums are mounted on a common axle andhave mostly also at their inner side compensating ellipses, which servethe purpose to compensate irregular thread tensions during the windingof the spool.

Due to the always more increased winding velocity, for instance up to1000 meters/min. and more, a drawback arises, however, in the splitdrums of the described structure due to the fact that the fiber fiydeposits itself inside 7 of the split drums in the smallest corners andedges, which drawback is still more increased the higher the windingvelocity which is used. These fiber fly accumulations are carried awayfrom time to time by the passing thread and reach the. cross-winder inthe form of naps or adhering It is further known to provide such tensionduring the winding process, that for instance pointed places in thethread are broken. Due to the increased winding velocity it occurssometimes that the not yet wound end of the thread is caught and windsitself then inside of the drum over the compensating ellipses or aroundthe driving axle of the split drum, if the thread tears in the immediatevicinity of the winding spool. A removal of such a ball requires,however, that the entire machine must be stopped, which causes not onlya reduction in the production, on the one hand, but also a loss ofthread, on the other hand.

' It is, therefore, one object of the present invention to provide awinding machine, particularly a cross-winding machine with split drumswhich avoids the drawbacks of such known machines.

It is another object of the present invention to provide a cross-windingmachine with split drums which are quite superior in their operationwhen compared with the known machines of this type.

It is still a further object of the present invention to provide across-winding machine with split drums wherein the split drums of thecross-winder comprise partdrums separated from each other by aseparating split extending therethrough and which part drums are notconnectcd on their inside, each of the drum parts being mounted anddriven on its outside and are equipped with preferably smooth drumbottoms on their inside.

" By" providing the novel structure of the split drums, the

freely the inside of the drums due to this advantageous structure.Furthermore, it is now no longer possible that a torn oif end of thethread forms a ball since it hangs freely immediately after such break.Also the collecting slotis eliminated in this novel drum structure, sothat I 3,004,726 Patented Oct. 17, 196i no fiber accumulations can occurat this point. Last, but not least, these drums operate safely andsecurely.

It is still a further object of the present invention to provide across-winding machine with split drums to arrange a cylindrical outersurface for each of the drum parts forming the drum and to drive thesedrum parts by means of drive shafts of equal cross section.

It is also a further object of the present invention to provide across-winding machine wherein instead of split drums discs scutchers areformed by reduction of the wall thickness of the drum parts in axialdirection towards the separating split, which disc scutchers are notconnected inside thereof on the one hand and likewise are driven onlyfrom the outside on the other hand and are mounted in such a manner thateach of the two individual scutchers is driven by an adjacent drive.

Thus the present invention is based on the concept to form the drums ordisc scutchers on their insides Without any obstacles which brings aboutvery advantageous and effective results. In addition it must beemphasized that the arrangement of the drums or of the disc scutcherswith equal axles leads not only to appreciable constructive advantages,but it shows also great advantages in connection with the drive means.Due to the novel construction in accordance with the present inventionand the arrangement of the drum parts in cylindrical form, themanufacture of these parts is appreciably simplified.

It is, however, also another object of the present invention to providea cross-winding machine with split drums wherein the axles of the twosplit drum parts are disposed angularly towards each other by forming anangle which is smaller than The relative position is arranged preferablyin such a manner that the driving axles diverge strongly towards thewinding spool. It is furthermore of advantage to form conically the drumparts cor-.

responding to the inclined angle between the axles in such a manner thatthe surface line engaged by the winding spool is a straight line. Bythis arrangement the axle of the thread input is flattened out due tothe downwardly widening slot, which leads again to the advantage thattoo strong tension diiferences during the winding and in particularduring the winding of the spool edges are avoided.

In order to achieve now a completely equal run of the two independentlydriven drum parts, in accordance with the present invention thedrive ofthese drum parts takes place over a joint gear drive, whereby the twodriving gears are mounted on a common drive shaft and cooperate with thedriven gears of the drive axles of the drum parts. Thereby the total runof the machine and of its drum parts, respectively, is throughoutequalized and without any fluctuations.

In accordance with a further advantageous development of the presentinvention the split drums and the disc scutchers, respectively, aredisposed between a pair of driving elements, whereby the drive may takeplace in such a manner that each drum part or each disc scutcher part isdriven by the adjacent drive.

Due to this clever driving combination for the split drums or for thedisc scutchers, in accordance with the present invention, not only anappreciable space saving is brought about concerning the entirearrangement of the machine in longitudinal direction, but also relativeto the drive and its organs is it possible to provide less drive parts,namely gears and drive shafts and a completely reliable winding processmay be achieved. Due to the drive of two adjacent drum parts or discscutcher parts by means of a single drive element is it possible toaccommodate many drums or discs within a comparatively small space. Asto the driving technique this double drive of each of the drive unitsbrings about the advantage that each drive shaft which carries at itsend portions a 3 "part drum or a part scutcher is supported on bothsides, "so that any unfavorable forces which may occur are properly andeffectively balanced and received, respectively, by this two sidedmounting. Any overloading which is experienced in a one sided mountingis completely exeluded due to this novel arrangement.

With these and other objects in view which will become apparent in thefollowing detailed description, the present invention will be clearlyunderstood in connection with the accompanying drawings, in which:

FIGURE 1 is an end view of a cross-winding machine showing the threadrun;

FIG. 2 is a fragmentary schematic end view indicating the substitutionof disc scutchers for the split drums and also indicating the threadrun;

FIG. 3 is a front elevation of the machine, partly in section;

FIG. 4 is a schematic showing of the drive of the machine indicating anindividual drive for each machine side;

FIG. 5 is a schematic showing of the drive of the 'machine indicating ajoint drive for both machine sides;

FIG. 6 is a fragmentary front elevation of the drive 'with the splitdrum parts;

FIG. 7 is a schematic showing of the machine drive by means of spurgears;

FIG. 8 is a front elevation of the drive shown in FIG. 7;

FIG. 9 is a schematic showing of the machine drive by means of sprocketgears;

FIG. 10 is a front elevation of the drive indicated in FIG. 9; and IFIG. 11 is a front elevation of another embodiment of the presentinvention with split drum parts formed as truncated cones, theindividual drum parts being disposed on driving axles which are arrangedangularly towards each other.

Referring now to the drawings and in particular to the cross-windingmachine disclosed in FIG. 1, a frame 10 has projecting arms 11 arrangedabove the bottom portion of :the frame 10, while the center portion ofthe frame 16 is "formed to a carrier 12 arranged above the projectingarms 11, the carrier 12 forming a bearing for the split drums 13 and 13and of their drive means 14 and 14, respec- *tively. The winding spools15 are driven in conventional manner on the split drums 13 and 13',which are of cylindrical shape in accordance with the present inventionand are mounted and driven on their outside.

The run of the thread 16 takes place, thereby, in the following manner:

I The thread is taken at first from a standing running-off spool 17 anda standing cop 18, respectively, which are adjustable as to theirheight, whereby the balloon formed during the unwinding of the thread isbroken by a balloon breaking device, as by a so-called balloon breaker19. The thread 16 runs behind the balloon breaker 19 in the direction ofthe thread run through two slot thread cleanem 20 and 21 successivelyand reaches then the disc yarn brake 22 wherein the last fly or the likewhich still adheres to the thread 16 is removedby suction and:is fedinto the suctionpipe 23.

The thread '16 runs upon leaving the ,disc yarn brake 22 -over a yarnguide rod 24 andthereafter through the thread guide .drums 13 and 13which are constructed without ;inner connection and thus permit a freepassing of the thread. These thread guided rums13 and 13 are driven bythe drives 14 and 14, the structure of which will be set forth below..The winding or-cross spools 15, which are detained in the spool holder25 engage directly these thread guide drums 13 and 13'.

Referring now to the embodiment disclosed inFIGS. 2

-g2lIld 3 disc scutchers 27 and 27 are provided instead of :the threadguide drums 13 and 13' byreducing the wall thickness in axial directionlooking towards the slit 26,

, which disc'scutchers 27 and 27' are not connected on their inside .onthe one hand, and are merely mounted and driven on their outside, on theother hand. The drive of these disc scutchers 27 and 27' is broughtabout in accordance with the embodiment shown in the drawing by means ofa screw drive whereby transmission gears 29 are provided on the maindrive shaft 28 at the respective drive stations, which transmissiongears 29 are for instance, screw gears. The drive is transmitted to anintermediate shaft 30 by means of the gears 29, which intermediate shaft31 cooperates in turn with the drive shaft 32 of the disc scutchers 27and 27' by means of intermediate gears 31.

These disc scutchers are arranged in such a manner that two scutcherparts are disposed always between two drive stations, that means thatalways a complete disc scutcher 27 and 27 is disposed therebetween andeach individual scutcher 27 and 27, respectively, is driven by theadjacent drive, whereby each individual scutcher of a disc scutcher isdriven separately from the other, however, from a common main driveshaft 28. Each machine side can thus be driven individuallyror ifdesired both sides may be driven jointly.

Referring now to the embodiment disclosed in FIGS. 4 to 6, such amachine drive is disclosed. As indicated in FIG. 4 of the drawings, twomain drive shafts 33 and 34 are provided whereby the shaft 33 drives oneside of the machine and the shaft 34 drives the other side of thewinding machine. The drive transmission takes place again by means of apair of screw gears 35 mounted on the main drive shaft 33 and 34,respectively, to the intermediate gears 36 and to the shaft 37 of thesplit drum.

The drive in accordance with FIG. 5 is arranged in such a manner that asingle main drive shaft 38 is provided which drives both machine sideswhich have a common intermediate shaft 39 which transmits the drive tothe drive shaft 37 of the split drums. Here again is the drive performedby means of screw gear transmission. As shown in FIG. 6, the individualdrum parts 1.3 and 13' are disposed between each pair of adjacent drivestations in such a manner that always one drum part is driven from itsadjacent drive. Furthermore, FIG. 6 indicates also quite clearly thecylindrical formation of the drums 13 and 13 on the one hand, and thecoaxial arrangement of all drums 13 and 13.

Referring now to FIGS. 7 and 8 where a different drive arrangement ofthe machine is disclosed, which may be set either with one or ifrequired, with two maindrive shafts 40 and 41, whereby the drive istransmitted by means of spur gears 42 to the intermediate gear pairs 43which in turn cooperate with the drive gears 44 of the split drums 13and 13 and of the disc scutchers 27 and 27', respectively. Thisarrangement of the spur gear drive is shown in FIG. 8 in a frontelevation, whereby one split drum 13 and 13, is disposed between eachpair of adjacent drive stations. The gear arrangement is preferably madealong an inclined plane (FIG. 7), so that as to its height little spaceis required for the machine.

Referring now to FIGS. 9 and 10, an embodiment for a drive of across-winding machine is disclosed, whereby two main drive shafts 45 and46, respectively, are provided which may be substituted, however, alsoby a single main drive shaft (not shown). The drive takes place in thisarrangement directly from the'drive shaft to the split drums 13 and 13',and the disc scutchers 27 and 27', respectively, by means of a sprocketchain 47.

Referring finally to FIG. 11, an embodiment of a split drum 48, 49 isdisclosed wherein both drum parts are of t uncated cone shape and eachdrum part is slidingly mounted and driven. The drive shafts'50 whichcarry thedrum parts 48 and 49 are angularly displaced towards each otherand form an angle ,8 which is slightly less than These drive shafts 50are laterally inserted into the drum parts 48 and 49 and are equippedoutside of the drum parts with a drive gear 51. The mounting 52 for theshafts 50 is disposed outside of the drive gears 51. The drive of thesegears 51 is brought about by additional gears 54 which are keyed to acommon shaft 53.

The two drum parts 48 and 49 are formed conically corresponding with theinclined position of the driving shafts 50, so that the surface line 55of the drum parts engaged by the winding spool 15 forms a straight line.The inner slightly arched drum bottoms 56 are completely smooth inaccordance with the present invention so that no fly particles may setthereon. Any obstacles as axles, compensating ellipses, projections orthe like are completely eliminated and thus any ball formation isexcluded. The free space between the two drum parts 48 and 49 forms onthe engaging point of the cross spool 15 a guide slot 57 for the threadof normal width, which is widened, however, in downward direction due tothe annular displacement of the shafts 50, so that only at the windingpoint 58 the space between the two guide drums is of normal width,whereby the thread 16 engages the drum guide edges 59. A particularinput slot is, thereby, eliminated since the widened space hassufficient width at the entrance point due to the fact that the drumparts 48 and 49 are inclined towards each other, in order to catch thethread 16. 1

As set forth above, the shown and described embodiments are merelyexamples for applications of the present invention and are not limitedthereto, rather other embodiments and applications to the constructionand to the formation of the split drums and of the disc scutchers,respectively, as well as to their drive means is possible within thescope of the present invention, which may be designed by embodimentsdifferent from those of the present invention.

Furthermore, it is also of advantage to provide a protection sheetperipherally around the split drums in order not to endanger theoperator of the machine on one side and by providing an input slot inthe protection sheet, the insertion of the thread is made easier andsimplified. This protection sheet may be arranged in such a manner thatit may be folded in order to permit of cleaning of the machine.

While I have disclosed several embodiments of the present invention, itis to be understood that these embodiments are given by example only andnot in a limiting sense, the scope of the present invention beingdetermined by the objects and the claims.

I claim:

1. In a cross-winding machine including winding spools, thread guidemeans, each of the latter comprising two parts separated from each otherby a slit extending entirely throughout said guide means and beingdisconnected at the inside thereof, so that said slit runs throughwithout any member extending across said slit, and each of said partsbeing mounted on its outside and means engaging the outside of each ofsaid parts for individual driving of said parts.

2. In a cross-winding machine including winding spools, a plurality ofsplit drums, each of the latter comprising two parts separated from eachother by a slit extending entirely throughout said split drums and beingdisconnected at the inside thereof, so that said slit runs throughwithout any member extending across said slit, and each of said partsbeing mounted on its outside and means engaging the outside of each ofsaid parts for individual driving of said parts.

3. The cross-winding machine, as set forth in claim 2, wherein saidparts forming jointly each of said drums are of cylindrical outerconfiguration, and coaxially disposed drive shafts for driving saiddrums.

4. The cross-winding machine, as set forth in claim 1, wherein each ofsaid thread guide means comprises a pair of disc scutchers disconnectedon their inside, and coaxially disposed drive shafts and driving meansfor driving each individual of said disc scutchers from the outsidethereof by means of said drive shafts by means of an adjacent drive.

5. The cross-winding machine, as set forth in claim 1, wherein the innerbottom face of said parts is completely smooth.

6. The cross-winding machine, as set forth in claim 2, wherein the axesof said parts of each of said split drums are angularly displaced fromeach other and form an angle less than 7. The cross-winding machine, asset forth in claim 6, wherein said axes are inclined to diverge towardsaid winding spools.

8. The cross-winding machine, as set forth in claim 6, wherein said drumparts are of partial conical shape each coaxial with its axis, so thatthe surface line of said drum parts engaging said winding spools is astraight line.

9. The cross-winding machine, as set forth in claim 2, wherein each ofsaid split drums is disposed between each pair of said driving means,and each of said parts being driven by the adjacent one of said drivingmeans.

10. The cross-winding machine, as set forth in claim 1, wherein each ofsaid individual driving means is disposed adjacent to and driving one ofsaid parts of said thread guide means. a

11. The cross-winding machine, as set forth in claim 1, wherein saiddriving means have a common drive element operatively connected witheach of said individual driving means for driving said parts of saidthread guide means.

12. The cross-winding machine, as set forth in claim 1, wherein saiddriving means include main drive shafts and chain drives for drivingsaid thread guide means.

References Cited in the file of this patent UNITED STATES PATENTS1,161,284 Belz Nov. 23, 1915 2,605,053 Broden July 29, 1952 FOREIGNPATENTS 218,586 Germany Feb. 7, 1910 372,827 Germany Apr. 5, 1923537,733 Germany Nov. 6, 1931 679,838 Germany Aug. 14, 1939 342,594 ItalyAug. 10, 1936 773,167 France Aug. 27, 1934 992,304 France July 11, 19511,082,462 France June 16, 1954

